Improvement in pumps



' ttl-tiled 'lteres i tutti @wird `Letters Patent No. 94,338, dated August 31, l1869.

IMPROVEMENT IN PUMPS.

The `Schedule referred to in these Letters Patent and making part of the same.

` To all whom it may concern.v

Be it known that I, ALBERT M. PUTNAM, of Antrim, in the county of Hillsborougg, and State of New Hampshire, have invented ynew and useful Improvements in Pumps; and I dol hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and t'o the letters of reference marked thereon.

The nature ofmy invention consists in the effective and simple manner of converting a common housepump easily and readily into a force-pump.

It also relates to the arrangement andcombination of devices, with the pump, whereby the same can be furnished at a moderate cost, being simple and reliable,- and not liable to get out of order.

-To enable others skilled in the art to make and use my invention, I will proceed to describe its construc- .ticnrand operation.

Figure 1 represents a plan of a pump, with myim- .provements attached.

Figure 2 represents a side elevation of the same, with parts broken out, showing its construction and operation.

Figure 3 represents a vertical section of fig. l, showing the operation of the diierent devices.

Similar letters in the dierent figures indicate corresponding'parts;

In the construction ofthe pump, with my rn-Y provements attached, the body a is made of one cast ing.

From the outlet or spout l) to the topl of the same, it

bulges out, being considerably larger in diameter than that part of the body a below the spout b.

The inside of this body a is finished smooth and `true, its top being grooved.

Near the top and back part, the body a is provided with ears c c, to which is hingedthc cover d, the under side of which is finished off true, and provided-with a suitable recess, which is supplied with elastic packing e, as shown in iig. 3 of the drawings.-

At the front part/of the body a, near its top, are

the ears f f formed on the same, to which is pivoted the, screw g, which is provided with a thumb-screw,

hgthis screw g operating between-the ears t t, which are formed on and to the front part of the cover d, when it is required to be closed, which forms the aircharnber in the top of the same, thus constituting the force-pump.

Also, formed on the insideand outside of the body a, between the top and spout b, is the projection j,

The collar m is then placed on'the shaft k, which prevents the packing l from coming out.

The brake, or handle n Vais iirmly secured to the shaft k, thus keeping the collar min position.

Secured to the shaft k, in the linside of the body a, or air-chamber, is the arm o, which connects with the top of the 'piston P -by means of a hinged `joint.

Attached to the bottom of the piston P, by a hinged joint, is common valve, or bucket q located underneath Vthe bucket q, and secured to the pump-body a is a similar valve, 4or bucket, fr.

rIhe pump being thus constructed, and its several devices adjusted in position, is then ready for use.

When to be used as a lcommonhouse-pump, the pressure is removed from the cover tl by aid of the thumb-screw h,`which ,allows the air to circulate in and out of the chamber.` I

YVhen to be used as a force-pump, the cover d is secured firmly down to the top ofthe'pu'mp'hy means of the thumb-screw h, which, by aid of the packing e and the groove in the top of the body a, a perfect airchamber is formed in the top of the pump, which gives to the pump the requisite properties required to constitute a force-pump, the suction being retained in both cases.

Hose being attached to the spout b, by aid of the brake a and the devices, consisting of the shaft k, suitably supplied with elastic packing l and arm-o, water; can be raised and forced from the same effectually and easily, which, in case ofiire, in many instances completely subdues. the same.

Thus it will be seen, by the construction and ar- -rangement of my improved pump, the body a being cast-iron, and made at one casting, the top being provided with a suitable cover, d, and easily and conveniently packed, the working-parts being simple and encased within the body a, thebrake n being the only part exposed, the pump is less liable to get out of order, and when out of order easily repaired, more durable, and at the same time the properties con sisting in a house and force-pump being combined in one, enables meto furnish the-same at a moderate cost-at a less rate than the common copper housepumps now in use.

And, again, when it is to be used as a'housepump, the water being drawn o', to prevent-freezing, by aid of the cover ll, it being closed and secured rmly to the top, the watencan be raised easily and readily in the same, without resorting to the Vusual method, as with common pumps.

Furthermore, by the arrangement and combination of the brake n, shaft k, and arm o, the friction being reduced, distributing.. the power to the dead points where it is most required; v

vWhen the same is used either as a house or forcepump, the same can be operated easier and-with less inconvenienoe .to the user, which, on the whole, being ldevoid in its material of construction of any poisonous metals, is far more conducive to the health of the public.

What I claim as iny invention, and desire to secure by Letters Patent, isf- The combination and` arrangement ofthe arm o, 

